12 letters
- mainstreamed20
- majestically31
- malacologist22
- maladjustive31
- malapropists22
- mammalogists24
- mandolinists19
- manifestants20
- manifestoing22
- masculinists21
- mastectomies21
- masterliness17
- masterminded21
- masterpieces21
- mastersinger18
- masterstroke19
- mastications19
- masturbating22
- masturbation20
- masturbators19
- masturbatory21
- materialists16
- medievalists21
- megaloblasts22
- melanoblasts21
- memorialists19
- menstruating20
- menstruation18
- mercantilist20
- meristematic21
- meristically22
- metallurgist20
- metastasized25
- metastasizes24
- metrologists18
- microanalyst22
- microcrystal24
- microscopist24
- mifepristone22
- militaristic19
- milquetoasts26
- mineralogist19
- miniaturists17
- ministration17
- minstrelsies17
- misadjusting29
- miscellanist21
- misconstrued21
- misconstrues20
- misesteeming21
- misestimated19
- misestimates18
- misogynistic23
- misregisters17
- misstatement19
- mistranslate17
- mistreatment19
- moisturising19
- moisturizers25
- moisturizing28
- molestations17
- monastically23
- monasticisms22
- monochromist24
- monocrystals22
- monologuists20
- monopolistic23
- monotheistic21
- morphologist23
- motorcyclist24
- mournfullest23
- multistemmed24
- multistoried18
- museologists19
- musicologist22
- mycophagists27
- myeloblastic25
- mysteriously21
- mystifyingly28
- mythologists22
- narcissistic19
- nationalists15
- naturalistic18
- necrologists19
- negativistic22
- nematologist19
- neorealistic17
- neostigmines19
- nephrologist21
- nephrostomes21
- neurasthenia17
- neurasthenic20
- neurochemist22
- neurologists17
- neutralistic18
- nimbostratus20
- noctambulist24
- nominalistic21
- nonabstracts20
- nonaesthetic19
- nonbiologist20
- nonbotanists18
- nonbroadcast21
- noncolorfast21
- noncommunist25
- nonconstants19
- noncustodial20
- noncustomers21
- nondomestics21
- noneconomist21
- nonexistence25
- nonfeminists21
- noninterests15
- nonrealistic18
- nonresistant15
- nonscientist18
- nonsocialist18
- nonsteroidal16
- nonstrategic19
- northeastern16
- northeasters15
- northernmost19
- northwestern19
- northwesters18
- numerologist20
- numismatists20
- nutritionist15
- objectivists31
- obscurantist20
- obstetrician19
- obstreperous19
- obstructions20
- obstructives23
- oceanologist19
- odontoblasts18
- onomastician20
- operationist16
- opportunists20
- optometrists18
- orchestrally21
- orchestrated18
- orchestrater17
- orchestrates17
- orchestrator17
- orientalists14
- orthodontist16
- orthopedists18
- orthopterist17
- ostentations14
- ostentatious14
- osteoblastic19
- osteoclastic19
- osteogeneses15
- osteogenesis15
- osteological19
- osteologists15
- osteomalacia19
- osteopathies17
- osteoplastic19
- osteoporoses15
- osteoporosis15
- osteoporotic18
- osteosarcoma18
- ostracoderms19
- outdistanced19
- outdistances18
- outstretched19
- outstretches18
- outstripping22
- outthrusting19
- outwrestling20
- overabstract22
- overcastings22
- overestimate19
- overharvests22
- overmastered20
- overmodestly23
- overoptimist22
- overstaffing25
- overstepping25
- overstirring19
- overstocking26
- overstrained18
- overstressed17
- overstresses16
- overstrewing22
- overstridden19
- overstriding20
- overstriking23
- overstuffing26
- painstakings23
- palindromist21
- palynologist22
- pantomimists22
- papyrologist23
- parachutists21
- paraesthesia17
- paraphrastic23
- paresthesias17
- paronomastic22